Apparatus for making glassware



Aug. 24, 1943. H. R. scHUTz 2,327,825

APPARATUS FOR MAKING GLASSWARE ATTORNEYS Aug, 24, 1943 H. R. SCHUTZ APPARATUS FOR- MAKING GLASSWARE Filed Mroh 29. 1940 7 Sheets-Sheet 2 ATTORNEYS Aug. 24, 1943.

7 Sheets-Sheet 3 INVENTOR ATTORNYS Aug. 24. 1943. H. R. SCHUTZ 2,327,825

APPARATUS FOR MAKING GLASSWARE Filed March 29, 1940 kbm '7 Sheets-Sheet 4 INVENTOR EIR .Schutzg Aug. 24, 1943. H, R SCHUTZ 2,327,825

APPARATUS FOR MAKING GLASSWARE Filed March 29, 1940 7 Sheets-Sheet 5 INVEN'roR HR .Schaaf/LZ,

ATTQRN S ug. 24, 1943.y H- R; sgHU-rz Y 2,327,825

APPARATUS FOR' MAKING GLASSWARE Filed March 29, 1940 7 sheets-sheet e sa .Zeg-1Z- INVENTOR .H 12.5 chubz,

ATTOR EYS piece has been placedthereon;

Patented Aug. 24, 1943 UNITED .f l PATENT oFFicE 7 APPARATUS iroajMAKrNG GLASSWARE f naman.sehutzg'roieao,ohidssign tcLibbey v 3Glass Cornpany,;a corporation of Ohio y My invention relates to methodand apparatus adapted for use in 4thel.manuiacture1 .ci glass articles and in its preferredfornias herein illustrated the apparatus is"de`sfignedfor performing certain operations in the manufacture of Stemware. It comprises a machine forinold'- ing a stem with a foot thereon and'attaching the stem by a pressing operation to apre-blown bowl. Other operations, not 4a partfofthepre's'yent invention,V may follow for i'lnishing'fthe ary` ticle. An objectief the invention `is to pr ovide a machine which is adapted forV automatically eiecting various operations which` heretofore have commonly been done by hand inithenmanuvfacture of Stemware and the like. The invention in its preferred orrncomprises a, main Work table for supportingthebowlsyto which the stems are to be attached', means fror rotating the table step by step, a `mold-table and press molds thereon above the work table, and means for `elevatinguthe bowls into position relative to the press molds for the yattachment of the stems thereto.\

Referring to the accompanying drawingswhicn illustrate a machine embodying the principles of my invention: y j Fig. 1 is.afragmentarynsectional.elevation of the machine; l i l Fig. 2 is a sectional plan, View ofi the the section being takenat the line 2-72 .on F ig`1;

Fig. 3 is a section at thelinel3- 3 on Figi 1; Fig.4 is a vertical section aty the linen- 4 on Fig. 1;

Figs. 5 lando Varerperspective* views respecliVely of the upper and lower sections ofVA thevelevator bywhich a bowl is positioned withinthe press mold; i

Fig. 7 is a perspective View fof a centeringrand holding device for the press'mold sections;`

l Fig. 8 is a section-at the line l8---8 OnFig. j 1A showing particularly the mold opening and closing cam;` y' j Figs. 9 and 10 are sections at the lines 9-9 and lill0 respectively on Fig. 8;

opening and closing mechanism;

Fig. 12 is a sectionalplan of thesarne atnthe line |2-l2 on Fig. 11;V l

Fig. 14 isa section at the line. Ill-IQ on Fig. 3 showing mechanismv for moving a slide radially inward on the worktable when `a work- Fig. 13 is a section attire iineini'ia av stationary" cam' v25.V

piece.

.application Marchas, i940, sei-nim. 326,635` o claims. (Grief-37) ,f2

'andcarrying'elevators 21,'ea'ch adaptedto sup` `port'afwork-'piece or bowl `28r ci the article bein'g formed and operable tolift the bowl into position within the press mold'234 for attachment 'of the stem lthe'reto. jMeans are provided for '4 moving the slides`26 radially outward intoposi tion for receiving and 4discharging the work- The' center column 20 is supportedcn a base V3i) '(Fig;l 1) onwhi'ch is also mounted driving mechanism for imparting an intermittent step by step rotation tol the carriage. Said driving .mechanism is conventional, beingused, for exf ample, in' Lynch type machines. It includes a `worm wheelSl continuously driven by an electric motor and operating through a Geneva drive vtojrotate the carriage. Said Geneva drive includesja driving element 32 connected to rotate .withthe worin wheel and carrying a roll 33 which at each rotation of said element, engages a' Geneva gear 34y bolted to the carriage, for

`imparting a step rotation tothe latter. The work tablel is supportedfon ball bearings 35.

The mold table l22is supported on bearingsilt` and is driven by means of drivingI elements in the form of posts 3l rising from the table 2| and 'which engage behind lugs or blocks 3B on pthe lower sideo themold table -22. Eachr mold j" groupiis brought to the, stop, positions or sta- (I 45j Fig. 11 is a, sectional elevation offvthefmold tions u to Z (Fig. 8) in succession by the step movements of the carriage. Mechanism is` provided'for adjusting the mold table v22 upandldown relative to the table 2l, `which/permits all of the press molds and their loperating parts l-to be raisedor lowered at. the same Atime to suit various lengths of bowls orlarticles 'which are being. made, thereby eliminating -the usual adaptors. ASuchmechanism includes an innerjsleeve member 39 attached byf bolts 40 to theltable 2l and having exterior screw threads nts 'snugly within the 'incid Actw at 10 tothe forward ve'nds o'f engaging an interiorly` threaded -outer sleeve member 4| which carries' the roller bearings 36 supporting the mold table 22. The sleeve member 4| has bearings at its upper end in a stationary .plate or spider 42 supported by brackets 43 attached to the center column 20. Keyed to the upper end of the sleeve 4| is a ring 44a formed with sockets-44 to receive a socket wrench for ro' tating the sleeve 4|rfan'd thereby adjusting the mold table up -or down. v

The mechanism for supporting the Work-pieces on the table 2| includes slides 26 (Figs. 1, 3 and 4) arranged in an annular series and extending radially of the machine.V Each slide is mounted for radial movement in a pair oi `'gui deways pro'- vided by a plate 45 and guide rails V"48 bo'lte'd thereto. The plate 45 is formed onk its lower ,side with an annular boss 41 which ts in Van opening 48 in the table, thereby holding the plate in posi# tion while permittingit with the work-holder thereon readily tb be removed. Thefslideplate 26 is formed with a cylindrical casing 49'in wiich is-mount'ed the elevatory 27:'fo`r lifting ann lowering the worklpie'ce 28 asheieinafte'rj descriloed. The elevator includes an upper ring '50 supported on a lower ring A holder 52 whichlseatsoh thefelvato 50 is 'adapted to receive snfrfpsI 53 iniwhic ofthe supporting ring 5|.

The ring si is Ymrmjnted fr "esem-ating movement within the Cas-e d'9 and has attache-dineren Van arm *'56 which' extends through fan ellongated slot 51 in the wal; ci the case 4 9. Meaiisa Ve brio'- vide'dga's hereinafter described yfollenga'ging `the arm 56 and rotating the ring 51,. th'eijebycammingthe jelevatorring 50 upwardly. TM A 's ves to move 'the bowl 28 upward soth'at 'its 'upper end rand isabel@ in such position while 'the stem is attached thereto. The elevatorhring5 is held )against rotation by a lug 58mountel'on the/casing 49 (Fig.v 4) engagiertmenswear@ inthe j'rne press molds ,M3 (Figsfn zand @fea n doinprises a pair of Inold sectionscairied j o a which swine ab'outpa vertidal rivet nin t! to aplate 62 mounted'fon the tabl'e 22. Me Y `s fyr opening and closing the incid includes fabyoke'BS Connected by pivqts' sa to `6s. frirgutr ends of thelinks 65 arejpivoted at 86 to a pair of mold :gripping arms si, the getter b'eigpiyoted at '65 to thevm'old table. EQ pivdted the 'arms BIxcarry pinsl 1 which engage `sockets 'in thejdrwardjnds of the mold sections*-` The yoke Y63 is mounted for radial movement and when vmoved outwafr'd'ly operates through the 'linkage just 'described 'to close themold. l Y

A U-sh ped 'member '|3A '(Fig's. 4 and '7)' `r'fe upward behind the block 80. l

block 'I9 engages stop lugs 83 formed on the yoke v flerred to as a ring, is'attache'dftothe plate |52 by l boltsA'M land 'is form-edwith l a extending 'circum'fferentially along 'its vouter surface to receive 4cori'espndirgly 'shaped ribs formed on the mold sections: 1`liisgfservesas a centering device` forthe'p'ress mold. It 'also :holds or clamps the mold downo'n the p latfe 82, thereby preventing it from rising when the evat 5o preuminary to the intro-nudit f 'the ch se of glass into the incid for Termin-etnie sterf-1 and foot. lThe ringisfurtner prerentsgtheimtm from tipping 'over While rtlie inold "lable 'is r'otating.

`a dove-tail "groove for opening and closing the mold. Referring to *A Figs. 1, 2 and 11 to 13, a pair of slide bars including a lower slide bar 16 and an upper slide bar 11 are mounted for sliding movement radially of the mold table in a guiding frame I8 secured to the table. The lower slide bar 16 is f ormedintegral with theyyoke 63; lIhe two slide bars, are spaced apart verticallyand shaped to provide a guideway in which slide blocks 'I9 and are mounted, said blocks being formed with sockets to receive the ends of a coil spring 8| which may be placed under compression between fthe blocks. The lower slide plate 'I6 is formed at its inner end with stop lugs 82 which project The outer slide 63. The upper slide plate I1 is formed at its inner end wi h :depending lugs 11% whichengage Behind in broek so; "The prete 151 carries at its.

B`9mun'tie`d 'o'i a lug 90 A link 9| connected atene end byI` apivotpin 'S2 to the-slide plate I 'land connected at 'its other -eri'd by ap'ivot pin 93 to the lever 8'|, provide's 'an operating connection between the lever an'd the 'slide plate. v A l,

The cam 25 includes a :section 25a (Fig. 8), vffor pening themolds, a section 25h for holding them open, 'a section 25'c r `closing the inolds, a section 25d fo'rholding the-fioldsclosed under spin'g pressure, a `sec`tior`1f`25e erackijng the mords; a "section -tf'wmch retains the inbl'l's open without spring pressure, andv secytioifis '25? which provide double' cam tracks' and which serve selectivelj7 or either- 'open 6r dosed herein-'after described.,

Wheh th'e 'Can roll 88 engages th'e sCtih 25C; it is moved radiallyy outward l`and Aperates hl''lgh the lhcliahi's'm 2'4 '(Fgs'. -ll t0 413) 150 close the mold. The outward movement of the carhroll operates through the lever 8T and link 9| vtrifi'fiove the upper slide 111 outward. This 'I7 inwardly, causing the stop screw 84 4t'ofefngagev 6' and yoke `63 ingreaterdistance from the pcenter o f the machine is imparte'drto thefupperslideplate lfo slightly opening "fr '|9 vand through the s; "out-ward; thereby` f i i i Y trakepmprisis Effe section 25d 1s positioned radially outward /a somewhat molds are again fully closed, but areY held closed with comparatively slight ,pressure .applied through the spring 8| while the cam roll travels along the sections 25f and 25g.

The cam sections are removably, adjustably and in part interchangeably mounted on the cam plate d2, by means of the construction shown in Figs. 8 to 1G. This comprises an annular plate or ring S surrounding theplate 42;.said' ring Vhaving an inner vertical flange 95a' secured'by bolts 96 to the plate ll2. An outerring 91 made in separate halves or sections is removably attached by bolts 9S to the ring 95; The cam sections are held in position between the plate 42 and ring 91 and are clamped in place by corner set screws 99 threaded through the ring 95 and into the cam sections. The cam sections are for the most part of a length corresponding to the angular distance through' which the mold carriage is advanced during each step movement, the ends of the cam sections abutting along ra dial lines 99a (Fig. 8).

The cam sections 25g are formed to provide an outer cam track 25h and anv inner cam track 255i separated by a wall lil or flange formed on the cam sections. It will be seen that with the cam sections arranged as shown in Fig. 8, the double cam track and partition wall i extend from the section 25f to the section 25a, and include the stations f to k. With the arrangement shown, the cam roll S8 travels in the outer cam track 25h while traversing said stations. In this manner the molds are held closed through a comparatively long period of time. However, the cam section 25a, which serves to open the molds, may

be placed `interchangeably between any two of the cam sections Ztg or may be placed at station f to adjoin the section 2Ef. By removing the outer ring 97 or one-half thereof, any desired cam section may then be removed by first loosening its holding screw 99. The cam sections may valso be slidably adjusted circumierentially of the lcam plate by rst loosening the holding screws S9. In this manner the section 25at may be removed and then one or more of the sections 25g advanced toward the section 2th and the section liti2L then placed in the gap thus provided. After such rearrangement of the cam sections, the cam roll will be directed by the section 25ab into the inner cam track Z. This inner track, which now registers with the section 25h, holds the molds in open positionl while the cam roll trav.- erses the inner track. This means vof adjustment permits the molds to be openediat any desired station within the range of adjustment, depending upon the requirements of the particular article which is being formed in the mold.

The mechanism for moving the slidesv 2% radially inward after receiving the work-piece, will now be described. Such mechanism (Figs, 14 and includes an air operated piston motor |05 mounted on trunnions lll. The motor piston |01 is pivoted at Hi8 to a lever or rock arm |l9. The arm |09 is mounted to swing about a pivot lill, at its lower end. The upper end of the arm is connected through a link to a lug formed on the lower side of a slide blockv ||2 mounted to reciprocate in guides i3 carried on a. framework H4.

A bifurcated arm H5 is connected by a pivot pin ||6 to the slide block ||2. The arm ||5 is normally held in its upright positionby a coil spring l ll, in which position it is adapted to engage a lug 26a on the outer endlof the slide-26 175 when the carriage. is'at rest. The pivotal mounting of said arm' permits it` to swing to one side if it should bevbrought accidentally in the path of the slide while the latteris `rotating with the carriage as, for example, uponiailure ofthe, motor lto move `the slide `block ||2 toits outer-Y most position.L i u f' 1: v

lilach step ,movement of the carriage brings a slide '2t-into line with the arm H5. vThe piston motor then operates to swing the lever `,|09 from theV fullline position to the broken line posi.- tion (Fig. 14),'.thereby moving'lthe slide block ||2 inward and throughlthe `arm v| l5 moves. the slide `2li inwardly. `The bowl 28 carriedon the slide is thusvpositioned between the open sections of` the press mold. The motor ||l5v immediatelysreverses and projectsthe slide block ||2 to itsoutward position, i s

The mechanism for moving the slides 25 outward is substantially. identical with that just .describedxand, shown in Figs. 14 and 15 including `the motor W5 and operating connections for moving the slides inward, except that the slide block H22 (Fig.. 16), .which reciprocates in a frame i ida, is oi somewhat different construction, In thisV instance the slide blockis formed with a projection' I8 arranged to engage behind the lug 26a on the slide 26. The operation of the motor which moves the slide outward is also the reverse of that above described for moving the slide I|2 inward. That-is to say, the outward movement of the slide 26 is effected .byan outward stroke of the motor piston rodfollowed immediately by aninward idle stroke.

The slides 25. are prevented from accidentalll moving outward beyond their normal projected position (Fig. 3) by means of `a stationary guard rail..|2il mounted on Athe frames H4, Illia. The rail is'positioned at the level of the slides and `providesan abutment for the outer ends of the slides as they advance with the carriage. A stationary guide rail l2 |v extending circumferentially vof the carriage serves a like purpose while the slides 2S are in their retracted position, the rail preventing the slides from being moved outwardly by centrifugal force or from being accidentally projected due to any other cause.

The elevator 2l is automatically actuated for lifting the bowl 28 while the latter is supported at Ythe station c (Fig. 3). The means for actuating the'elevator comprises a piston motor |22 which has a stationary mounting on a frame |23. The pistonrod |24 of the motor is in line with the "arm 56 when the elevator is at station c. The vmotor now operates to project the piston rod which engages `the arm 56 and moves it from the dotted line position to full line position, thereby rotating the elevator ring 5| (Fig. 4) and lifting the bowl -23 preparatory to the pressing operation. The piston rod |24 is immediately withdrawn -after its operating stroke. The elevator remains in its lifted position until it reaches the station l at which the slide carryingvthe iinishedy article is projected; -V i v- The `elevator is automatically lowered during the outward movement of the slide at station Z by means of an arm |25 mounted on the mold table and projecting into the ,path of an arm |26 attached to the elevator ring 5| diametrically opposite from the arm 56. The arm |25 is carried on -a rock shaft' |21 to which is also secured an armv |28Aheld against a stop screw |29 by means of a-lightV coil spring |30. It will be seen that with'this constructionthe arm .|25 operates positivelyftoV rotate .the elevator vring. as the slide, 216

moves outward at. station lf. `When the slide is'retracted at station a 'and' strikes-the arm t25, the latter is rocked and permits the 'elevator to pass without being lowered. y

A safety devicey (Figs. 3v and-15.) 4isprovided for stopping the machine or preventing the `mold carriage from indexing in the event that. the slide -26 at the station a is not fully retracted before -the mold `carriage commences its rotation. This safety device comprises a bar |3J| .positioned directly in advance of the projected slide `2t, said bar being attached to rock arms |32 on a. rock shaft |33 mounted on the frame I4. A link |34 connects the rock arms |32v withanv arm |35 `of a control. device. |36, herein 4shownas avalve, for

, controlling the motorwhioh drives the carriage.

If the slide 26 at station 'a is not fuily retracted before the carriage commences its4 movement, it engages the bar |3| and operates through the mechanism just describedforv actuating the'c'ontrol device `|36 and stopping the Injotor which drives the carriage.

, The frame 23 (Figsl, -2 and3) is formedlwith a marginal rib |31 which projects beneath a shoulder |38 formed o-n the periphery of the mold table 22. This provides a support for the mold table during the pressing operation. The frame |23 is mounted on a pair of veri'fi'f'zal posts |39 xed to the machineframe. An adjusting screw |40 provides means for adjusting: the frame |23 up and down. Clamping screws v |541' serve, to clamp the frame |23 in its adjusted position.

The work table 2| is supported in a similar manner by a stud |42 mounted 'on the machine frame in position to register with a lug` 'M3-(Figs. 1 and 14) adjustably mounted on the under surface of the work table.

'Ihe operation of the machine will be under'- stood from the preceding description but may be summarized as follows: While. the mold carriage is at rest, a bowl 28 carried by the snaps"-53: (Fig. 4) is manually placed in the holder 52 at stationfl (Fig. 3), the slide 26 with said holder being in its projected position. The mold carriage is now in:-

dexed by the Geneva drive, bringing the holder with the bowl 28 to station a. The piston motor |05 (Fig. 14) then opera-tes while the carriage remains at rest to move the slide 26 radially inward,` carrying with it the bowl 28. The carriage now rotates another step-` and brings the bowl to station b. During this rotation the cam section 25c operates to close. the press mold 23 around the upper end of the bowl 28. At 4stationvbf-a-V charge of glass is dropped into the mold by an automatic feeder (not shown). The carriage is again indexed, bringing they work-piece to stationv e. Here the motor |22 (Eig..3) operates the elevato-r to lift the workpiece into snug engagement with the closed mold. A mold gripl (not shown) now locks the mold closed and a press plunger M4.

(Figs...1 and 4) descends and molds the foot :and stem, at the same time pressing the stem `onto the bowl. The mold grip then releases the mold, allowing the table to again index. As the moldeadvances beyond station c, itfis cracked by. the section 251, then closed. As vthe cycle of movement continues, the mold remains closed', drawing. heat from the stem and foot. The length. of this time is variable depending on the position at Whichthe cam-section 25a hasy been placed., When cam section is reached, it operates, to the mold. The work-piece. may be removed at any time after the mold is opened but preferably vat the station Z afterthe slide carry-ing;` the workpiece has beenprojected outward. 'lheY elevator is loweredas before described bythe outward movement of the slide 26` at stationl. vAlthough theoperation has been. described yin connection` with the formation of a single article,l it. will be understood thatv each unit as it reaches the loading station a has a work-piece or bowl 28 placed thereon. so that a number of articles corresponding to the number ofi molds or units. arein process of yfabrication concurrently.`

Modifications may be resorted to withinthe automatically operated at a predeterminedl.time` after such registration, to rotate one said section and thereby elevate the said work-piece holder, ,f f

Y 2'. ApparatusY jfor fabricating glass,A articles comprising, in combination, a work-holder for supporting a work-piece of plastic glass, an elevator in which the holder is supporteda press mold positioned above the said holder, automatic means for bringing the press moldinto register with the holder, said elevator comprising an up` per section on which the said ,workfholderis carried and a` lower section, said lower section formed with a cam surface, and means dependent on said registration of the Dress mold and holder and automatically operated at a predetermined time after such registration, to rotate the lowerk section and therebycam the work-holder upward. '3. Apparatus for fabricating glass articles comprising a work-table, means for rotating it about a vertical axis, anelevator carried on said table, a Work-holder carried on said' elevator, a motorr having a'stationary mounting, said motor positioned and arranged to actuate said elevator when the latter is 4brought position by the rotation of' the work-table.

4'. The combination of a Work-table, means for rotating it, 'a slide mounted on said table for `movement radially thereof, an elevato-r carriedvon the slide, a work-holder carried on the elevator,

means for actuating the elevator WhileY the slide` 'is in its retracted position and thereby elevating the Work-holder, and means actuated bythe outward movement of the slide to reverse the elevator and thereby ylower the work-holder.

5. Apparatus for'fabricatingglassarticles comprising a Acarriage including a work-table, means for rotating the carriage intermittently step by step, a slide mounted on said table forrecipro'cating movement radially thereof, a work-holder carried on the slide, and mechanism for recipr'oe yeating the slide, said vmechanism including aV piston motor, a. stationary frame having a stationary guideway extending yradially ofthe worktable, 'aslide block movable insaid gui'deway land ypositioned to operate said slide, and operating connections between saidmotor and saidV slide block. l

6. The combination of a work-table, means for rotating itabout a vertical axis, a slide mounted on the table for reciprocation radially thereof, a work-holder carried on the slide, and means for actuating the slide comprising a piston motor, a slide block, a stationary frame having slideways extending radially of the Work-table and in which said slide block is mounted for reciprocation, and operating connections between said slide block and the motor.

7. The combination of a work-table, means for r-otating it about a vertical axis, a slide mounted on the ytable for reciprocation radially thereof, a work-holder carried on the slide, and means for actuating the slide comprising a piston motor, a slide block, a stationary frame having slideways extending radially of the work-table and in which said slide block is mounted for reciprocation, operating connections between said slide block and the motor, an arm pivotally mounted on said slide block, and a spring for holding said arm in an operative position for engaging the slide on the work-table.

8. Apparatus for fabricating glass articles, comprising a work-table, power transmitting mechanism geared to the work-table for rotating it about a Vertical axis, an elevator carried on said table and rotatable therewith, a Work-holder carried on said elevator, and automatic means for actuating said elevator and thereby lifting the Work-holder When the latter is brought to a predetermined position by the rotation of the work-table.

9. Apparatus for fabricating glass articles, comprising a work-table rotable about a vertical axis, power transmitting mechanism geared to the work-table for rotating it, an elevator carried on said table and rotatable therewith, a workholder carried on said elevator, and a device mounted separately from the work-table and operable automatically to actuate said elevator and thereby lift the Work-holder when the latter is brought to a predetermined position by the rotation of the work-table.

HAROLD R. SCHUTZ. 

